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42244-87-1

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42244-87-1 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 42244-87-1 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 4,2,2,4 and 4 respectively; the second part has 2 digits, 8 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 42244-87:
(7*4)+(6*2)+(5*2)+(4*4)+(3*4)+(2*8)+(1*7)=101
101 % 10 = 1
So 42244-87-1 is a valid CAS Registry Number.

42244-87-1Relevant articles and documents

Conversions of Thiochroman-4-ones into 1,2-Benzothiazepine, Benzothiophen, and 1,2-Benzisothiazole Systems via Sulphimide Intermediates

Tamura, Yasumitsu,Takebe, Yasushi,Bayomi, Said Mohamad M.,Mukai, Chisato,Masazumi, Ikeda,et al.

, p. 1037 - 1040 (2007/10/02)

Reaction of thiochroman-4-ones (1a-g) with chloramine-T gave the corresponding N-tosylsulphimides (2a-g) and sulphoxides (5a-g).The N-tosylsulphimides (2a-d), on reaction with triethylamine in chloroform, gave 2-tosyl-2,3-dihydro-1,2-benzothiazepin-5(4H)-

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